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Commit 2f15cb59 authored by Mike Rapoport's avatar Mike Rapoport Committed by Eric Miao
Browse files

[ARM] pxa/em-x270: update libertas device setup 



Signed-off-by: default avatarMike Rapoport <mike@compulab.co.il>
Signed-off-by: default avatarEric Miao <eric.miao@marvell.com>
parent 76e3fc36

arch/arm/mach-pxa/em-x270.c

+29 −3
Original line number Diff line number Diff line
@@ -684,26 +684,52 @@ static int em_x270_libertas_setup(struct spi_device *spi) 
	if (err)

		return err;



	err = gpio_request(GPIO19_WLAN_STRAP, "WLAN STRAP");

	if (err)

		goto err_free_pwen;



	if (machine_is_exeda()) {

		err = gpio_request(GPIO37_WLAN_RST, "WLAN RST");

		if (err)

			goto err_free_strap;



		gpio_direction_output(GPIO37_WLAN_RST, 1);

		msleep(100);

	}



	gpio_direction_output(GPIO19_WLAN_STRAP, 1);

	mdelay(100);

	msleep(100);



	pxa2xx_mfp_config(ARRAY_AND_SIZE(em_x270_libertas_pin_config));



	gpio_direction_output(GPIO115_WLAN_PWEN, 0);

	mdelay(100);

	msleep(100);

	gpio_set_value(GPIO115_WLAN_PWEN, 1);

	mdelay(100);

	msleep(100);



	spi->bits_per_word = 16;

	spi_setup(spi);



	return 0;



err_free_strap:

	gpio_free(GPIO19_WLAN_STRAP);

err_free_pwen:

	gpio_free(GPIO115_WLAN_PWEN);



	return err;

}



static int em_x270_libertas_teardown(struct spi_device *spi)

{

	gpio_set_value(GPIO115_WLAN_PWEN, 0);

	gpio_free(GPIO115_WLAN_PWEN);

	gpio_free(GPIO19_WLAN_STRAP);



	if (machine_is_exeda()) {

		gpio_set_value(GPIO37_WLAN_RST, 0);

		gpio_free(GPIO37_WLAN_RST);

	}



	return 0;

}